JPH05177601A - Circular saw machine - Google Patents

Abstract

PURPOSE:To prevent the run-out of a circular saw, make the circular saw thin, and enhance a sawing efficiency by a method wherein the circular saw is so constructed that the inside is movable and a tooth part is stable by movably keying a flange of the circular saw to a rotating shaft and clamping the circular saw by serrations at a part near saw teeth. CONSTITUTION:A large number of planar members 2 are juxtaposed on the center part of a table 1, and the both ends of the planar member 2 are inserted to support members 3, 4. In this manner, a saw setting part is formed. Bearings 7 for supporting a spline shaft 6 in holes 5 of the planar members 2 are fitted, and a drive shaft 8 is mounted on the outer end of the spline shaft 6. Furthermore, on the center part of each of a large number of circular saws 9, a flange 11 having a spline hole 10 is installed, and the flange 11 is fitted to the spline shaft 6. On the other hand, a large number of planar members 12 are juxtaposed also on the upper parts of the circular saws 9, and the both ends thereof are inserted to support members 13, 14. Parts of the circular saw 9 near saw teeth 18 are stably supported by serrations 16 of mounting pieces 17, 15 respectively provided on the planar members 2, 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular saw machine for performing sawing by a circular saw in a state where the inside is movable and the teeth are stable.

[0002]

2. Description of the Related Art In a conventional circular saw machine, as shown in FIG. 5, a hole 2 of a circular saw 21 is passed through a rotary shaft 23 and a flange 2 is inserted from both sides.
Grinding is performed with the inside fixed by being sandwiched by 4.

Therefore, when sawing with this circular saw 21,
Since the inner tooth portion of the periphery but does not move sandwiched the flange 24 is free, the saw body is or songs wanted or shake the timbers resistance takes be thicker, Ya change in thickness timbers When the adjacent circular saws 21 are bent outward as shown in FIG. 6, the intervals between the saw teeth are widened to make the width w of the sawing material larger than the interval s between the saw blades. The saw blade is deformed and enters the feeding material into the space s with a larger width w, and the saw material and the circular saw rub strongly against each other, causing the circular saw and the sawing material to burn, and the circular saw becomes a waste product due to thermal alteration. There is a point.

[0004]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that the saw tooth cannot be made to grind while its teeth are stable and the inside is movable.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a circular saw is provided with a flange, and the flange is movably keyed to a rotary shaft. The problem is solved by a structure in which the inner side is movable and the teeth are stable in a fixed position.

[0006]

Since the circular saw machine according to the present invention has the structure as described above, a flange is attached to a thin circular saw of about 1/2 to 1/3 of the conventional circular saw, and the hole having the key groove is keyed. When the circular saw is rotated by the rotary shaft by fitting it to the rotary shaft equipped with as shown in FIG. 1 and FIG. Since it is sandwiched by celies, it does not shake and is stable in a fixed position, but since the flange is movably supported on the rotating shaft inside, if a lateral force is applied, it will move freely according to this force. However, if the force is removed, the action of centrifugal force smoothly restores.

Therefore, if sawing is performed with this circular saw, since the saw blade is thin, the reduction in sawing due to the sawing is 1/2 to 2/3 that of the conventional one.
In addition, the circular saw whose teeth are sandwiched between the teeth is less likely to cause runout or bending, so it is possible to make accurate sawing material that does not cause changes in sawing width or bending. Since the two circular saws adjacent to each other are bent outward as shown in FIG. 3 to widen the intervals between the saw teeth, the width w of the sawdust may be larger than the interval s of the saw blade, When it reaches the space between the saw blades, it is pushed by this and the flange moves outward, expanding the interval of the saw blades to s' that fits the width w of the sawdust, so the sawdust only rubs lightly against the saw blades. Neither sawdust nor circular saw can be burnt after passing through the body. Also, if the interval a of the saw blade is widened by the sawdust, there is also a correcting action to restore the interval of the saw teeth expanded as described above to the original correct dimension. It will be fulfilled.

[0008]

Embodiments of the circular saw machine according to the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing a multi-saw type embodiment of this circular saw machine, FIG. 2 is a vertical sectional front view of the same, and FIG. 3 is a view in which two adjacent circular saws are bent and the saw teeth are spaced apart. Fig. 4 is a longitudinal section showing the single saw type of this circular sawing machine, when the width of the sawing material is widened and the width of the sawing material is made larger than the interval of the saw blade, the saw blade moves and the interval is adjusted to the width of the sawing material. It is a front view.

In FIGS. 1 and 2, reference numeral 1 denotes a circular saw table, and a saw installation portion at the center thereof is arranged so that both ends of several plate members 2 are inserted into support members 3 and 4 to form a gap. Each of these plate members 2 has a hole 5
, The bearings 7, 7 supporting the spline shaft 6 having a structure in which a large number of keys are arranged in parallel are fitted into the holes 5 of the plate members 2 on both ends, and the bearing 7 on the front side is made removable, and the intermediate plate A flange described later, which is movably fitted to the spline shaft 6, is fitted in the hole 5 of the member 2, and a drive wheel 8 is attached to an outer end of the spline shaft 6 so as to be driven by power. .

Reference numeral 9 denotes a circular saw, which is made of ordinary steel or uses a saw having a tip of a steel saw with a cemented carbide tip and has a spline hole 10 in the center of the saw blade. A flange 11 is attached, the flange 11 is fitted to the spline shaft 6 described above, and the flange 11 is arranged between the plate members 2 so that the flange 11 can be smoothly and lightly moved along the spline shaft 6. When the inner portion of the circular saw 9 receives an axial force, it freely moves in that direction, and when the force is removed, it is immediately restored to its original position by the action of centrifugal force.

Reference numeral 12 denotes several plate members corresponding to the above-mentioned circular saws 9 and forming an upper cover above the circular saws 9, and the front and rear ends of the circular saws 9 are inserted into the supporting members 13 and 14 to be arranged side by side. The upper part is shielded, and a serie attachment piece 15 is provided on each lower side so as to receive the upper part of each circular saw 9.

Reference numeral 16 denotes a serie that stabilizes the circular saw 9 described above. The serie mounting pieces 17 attached to the front and rear lower sides of the plate member 2 and the serie mounting piece 15 are provided with saw teeth of the circular saw 9. It is attached so as to sandwich the saw blade in the part close to 18, and this serie 16 uses ceramics etc. that have low friction resistance, excellent wear resistance, heat resistance, etc.
As shown in FIG. 1, a hole 19 is bored in the celery 16 and air or liquid is jetted from the hole 19 toward the circular saw 9 to cool the circular saw 9 and to bring the saw blade into contact with the celery 16. It is possible to further reduce friction by forming a fluid film on the part to perform lubrication.

FIG. 4 shows a single saw circular saw machine in which a flange 11 attached to one circular saw 9 is movably fitted to a spline shaft 6 provided below the table 1, and the circular saw 9 is used. Similarly to FIG. 1, the front and rear and upper side (the drawing shows only the upper side) sawteeth 18
The portion close to is sandwiched between the celeries 16, and a feeding ruler 20 is provided on one side of the celery 16, and the width of the material is determined by feeding the guided material. When the width of the sawdust becomes larger than the distance between the ruler 20 and the saw blade, the inside of the circular saw 9 moves to adjust the gap to the width of the sawdust to reduce friction. It has the same effect as the multi-saw type.

[0015]

As described above, since the circular saw machine of the present invention is capable of sawing with a thin saw of 1/2 to 1/3 of the conventional one, it is possible to minimize the scraping of valuable resources. The circular saw, which can greatly improve the utilization rate and stabilizes the teeth in a fixed position by means of celery, has a small amount of swimming even if it is thin, and can produce accurate sawing material without unevenness in walking or sawing, and a circular saw. Since the flange of is small in diameter, even a circular saw of the same diameter can grind a material that is considerably thicker than before, and the circular saw bends so that the width of the sawing material is wider than the distance between adjacent saws or the distance between the saw and the ruler. When increased, the saw blade spacing fits the width of the sawing material due to the movement of the flange and does not increase the friction between the material and the saw blade, so that the sawing material and the circular saw are not burned. That is a special effect.

[Brief description of drawings]

FIG. 1 is a side view showing a multi-saw type embodiment of a circular saw machine according to the present invention.

FIG. 2 is a vertical sectional front view of the same.

[Fig. 3] When two adjacent circular saws of the same as above are bent to widen the intervals between saw teeth and the width of the sawdust is made larger than the interval of the saw blades, the saw blades move and the spacing becomes the width of the sawdust. It is an explanatory view of a state of matching.

FIG. 4 is a vertical sectional front view showing a single saw type of the circular saw machine.

FIG. 5 is a vertical sectional front view of a main part of a conventional multi-saw circular saw machine.

FIG. 6 is an explanatory view of a state where the saw blade is strongly rubbed by the sawdust when two adjacent circular saws of the same are bent to widen the intervals of the saw teeth.

[Explanation of symbols]

 6 Spline shaft 9 Circular saw 11 Flange 16 Seri 18 Saw tooth

Claims (1)

[Claims] 1. A circular saw is provided with a flange, which is movably keyed to the rotary shaft. The portion near the teeth of the circular saw is sandwiched between celies. The inside of the circular saw is movable and the teeth are fixed. A circular saw that is stable in position.